¢710679O¤
Three Phase 60 Hz.
4. For supply wire ampacities and overcurrent protection, see unit
rating label.
5. On 120C Models only. For 208V operation remove wire from 230V
tap and place on 208V tap.
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
7106790
0907
WIRING DIAGRAM
Q5SN Series Convertible Packaged/Electric Heat Pump 208-230/460 Volt
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper conductors only.
3. If any of the original wire as supplied with the furnace must be replaced,
it must be replaced with wiring material having a temperature rating of
at least 105C.
CCH - Crankcase Heaters, Stage 1&2 Compressor
CC1&2 - Contactor, Stage 1&2 Compressor
IBC - Contactor, Indoor Blower Motor
RVS - Reversing Valve Solenoid
OFC - Contactor, Outdoor Fan
HPR - Heat Pump Relay
T1
T2
T1
T2
T2
T3
T1
IBC
L1
L2
L3
GND
24V Common
24V Hot
Compressor 1
T2
T3
T1
CC2
Compressor 2
T2
T1
T3
CC1
Aux. Switch
(N.C.)
CC2
Aux.
Switch
(N.C.)
CC1
CCH1CCH2
DF2 DF1
W2YOERC
C
OEW2R
DFT
Y
DFT
DFT
RVS
RVS
T1T2
OFC
CC1CC2
Aux. Switchs
(N.O.)
HK-4
E-8
4
1
7
HPR
High
Pressure
Switch
Stage 1
Evap.
Freezestat
Low
Pressure
Switch
Defrost
Board
E-1
E-2
Y1
Factory
Jumper
EHR
3
1
4
2
EHR
HPR
A
B
IBCBR
3
1
2
4
BR
CC1
6
3
9
HPR
High
Pressure
Switch
Stage 2
Evap.
Freezestat
Low
Pressure
Switch
E-4
E-5
Y2
Factory
Jumper
CC2
6
5
EHR
LVT-C (24V COM.)
LVT-W2 (Stage 3 Heat)
LVT-B
LVT-G
HK-3
HK-2
HK-1
E-9
LVT-W1/E (Emer. Heat)
LVT-O (Rev. Valve-Cool)
LVT-Y1 (Stage 1 Heat/Cool)
LVT-R
LVT-Y2
(Stage 2 Heat/Cool)
Aux. Switch
(N.O.)
IBC
Field Supplied Disconnect
(3Phase Power Only)
For supply connections use
copper conductors only.
Unit
Terminal
Block
Transformer
24V Sec.
Primary
Outdoor Fan Motor
Outdoor Fan Motor
Indoor Fan Motor
LVT - Low Voltage Terminal
DFT - Defrost Thermostat
BR - Blower Relay
HK - Heater Kit
E - Economizer
- Indicates plug connection.
Letter Indicates which plug.
Number indicates pin location.
4 Amp
Circuit
Breaker
See Note 5
1
OFC
Defrost Board Relay Operation:
Closes during defrost. Rating: 1 A Maximum
Opens during defrost. Rating: 1/2 HP at 230 VAC Maximum
Closed when “Y” is energized. Open when “Y” is deenergized.
Provides “Off” delay time of 5 min when “Y” is deenergized.
With DFT closed and “Y” energized, compressor run time is
accumulated. Opening of DFT during defrost or interval period
resets the interval to 0.
1
4
3
2
2
3
4
1
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